@CHARSET "UTF-8";

#btn1{
	width: 100px;
	height: 100px;
	background-color: #ff0000;	
}

#btn2{
	width: 100px;
	height: 100px;
	background-color: #00ff00;	
}

#btn3{
	width: 100px;
	height: 100px;
	background-color: #0000ff;	
}